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276
Eratosthenes
Eratosthenes of Cyrene (Ancient Greek: Ἐρατοσθένης, IPA: [eratostʰénɛːs]; English: /ɛrəˈtɒsθəniːz/; c. 276 BC[1] – c. 195 BC[2]) was a Greek mathematician, elegiac poet, athlete, geographer, astronomer, and music theorist. -
325
Pytheas
was a Greek geographer and explorer from the Greek colony, Massalia (modern day Marseilles). He made a voyage of exploration to northwestern Europe at about 325 BC. -
Mar 4, 1394
prince henry the navigator
was an infante (prince) of the Kingdom of Portugal and an important figure in the early days of the Portuguese Empire. He was responsible for the early development of European exploration and maritime trade with other continents. -
Oct 12, 1492
Christopher Columbus
Columbus's initial 1492 voyage came at a critical time of emerging modern western imperialism and economic competition between developing kingdoms seeking wealth from the establishment of trade routes and colonies. In this sociopolitical climate, Columbus's far-fetched scheme won the attention of Isabella I of Castile. Severely underestimating the circumference of the Earth, he estimated that a westward route from Iberia to the Indies would be shorter than the overland trade route through Arabia -
Jan 6, 1519
Ferdinand Magellan
Magellan's expedition of 1519–1522 became the first expedition to sail from the Atlantic Ocean into the Pacific Ocean (then named "peaceful sea" by Magellan; the passage being made via the Strait of Magellan), and the first to cross the Pacific. It also completed the first circumnavigation of the Earth, although Magellan himself did not complete the entire voyage, being killed during the Battle of Mactan in the Philippines. -
Benjamin Franklin
As a scientist, he was a major figure in the American Enlightenment and the history of physics for his discoveries and theories regarding electricity -
James Cook
Captain James Cook FRS RN (7 November 1728[1] – 14 February 1779) was a British explorer, navigator and cartographer, ultimately rising to the rank of Captain in the Royal Navy. Cook made detailed maps of Newfoundland prior to making three voyages to the Pacific Ocean during which he achieved the first European contact with the eastern coastline of Australia and the Hawaiian Islands as well as the first recorded circumnavigation of New Zealand. -
matthew maury
He was nicknamed Pathfinder of the Seas and Father of modern Oceanography and Naval Meteorology and later, Scientist of the Seas, due to the publication of his extensive works in his books, especially Physical Geography of the Sea 1855, the first extensive and comprehensive book on oceanography to be published. -
voyage of the beagle
The title refers to the second survey expedition of the ship HMS Beagle, which set sail from Plymouth Sound on 27 December 1831 under the command of Captain Robert FitzRoy, R.N.. While the expedition was originally planned to last two years, it lasted almost five—the Beagle did not return until 2 October 1836. Darwin spent most of this time exploring on land -
Challenger expedition
The Challenger expedition of 1872–76 was a scientific exercise that made many discoveries to lay the foundation of oceanography. Prompted by the Scot, Charles Wyville Thomson—of the University of Edinburgh and Merchiston Castle School—the Royal Society of London obtained the use of Challenger from the Royal Navy -
SONAR
Sonar (originally an acronym for SOund Navigation And Ranging) is a technique that uses sound propagation (usually underwater, as in Submarine navigation) to navigate, communicate with or detect other vessels -
bathysphere
The first bathysphere was devised by Otis Barton in 1928.[1][2] The vessel was designed by Captain John H. J. Butler, an engineer with Cox & Stevens, Inc., the firm that Barton hired in 1929 to construct his "diving tank". -
Ptolemy
was a Roman citizen of Egypt who wrote in Greek.[1] He was a mathematician, astronomer, geographer, astrologer, and poet (of a single epigram in the Greek Anthology). -
Eric the Red
Discovered Baffin Island -
Leif Ericson
discoivered what was then called Vineland
